Master's MateSafety Initiative Network

The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.

Vessel

HMAS Cape Capricorn

MMSI 503104000

Not yet on Master's Mate

Flag

AUS

Length

59 m

IMO

4764109

AIS reports

An Australian boat, HMAS Cape Capricorn measures 59 metres. On AIS she appears as MMSI 503104000, IMO 4764109. HMAS Cape Capricorn belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.

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Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

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Wherever HMAS Cape Capricorn roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

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Joining the Safety Initiative Network doesn't just put HMAS Cape Capricorn on the map. It hands you the full bridge:

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim HMAS Cape Capricorn and switch it all on

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About HMAS Cape Capricorn

What kind of vessel is HMAS Cape Capricorn?

HMAS Cape Capricorn is a vessel flagged to Ashmore and Cartier Islands.

What is HMAS Cape Capricorn's MMSI?

HMAS Cape Capricorn's MMSI is 503104000. IMO 4764109.

How big is HMAS Cape Capricorn?

HMAS Cape Capricorn is about 59 m long.

Is HMAS Cape Capricorn on the Master's Mate Safety Initiative Network?

Not yet. If HMAS Cape Capricorn is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).